a bit pricey but these get my vote, 11 years and still look great. https://katzkin.com/
Yes i think i saw these as well. These are not just covers are they? I would have to take the seat out and take off the old stuff. One day ill probably do this, seat isnt "that" bad yet, not losing any foam, when that starts ill replace. Just hoping to find a cover that would keep that from happening for a couple of years